https://tech.newstatesman.com/cloud/f1-aws-overtaking

For F1 fans, one of the most exciting aspects of the sport is seeing one car neck-and-neck with another, vying for pole position. While fans are already enthralled by the way this works today, those working at F1 wanted to be able to make this aspect of racing more exciting, by reducing the decrease in downforce generated by aerodynamics.

Currently, F1 cars suffer a loss of downforce when they are driving close to one another, meaning it’s harder for drivers to stay close to their rivals, and crucially, harder to overtake. For instance, a car running one car length behind another loses up to 40 per cent of its downforce. It means that the car slides around more and tires overheat.